:root{
  --ink:#16233F;
  --ink-soft:#3A4257;
  --parchment:#FBF7EF;
  --parchment-dim:#F1EADC;
  --paper:#FFFFFF;
  --evergreen:#1E7F5C;
  --evergreen-deep:#155C43;
  --gold:#C89B3C;
  --charcoal:#3A3A34;
  --line:#E4DCC9;

  --display:'Fraunces', Georgia, serif;
  --script:'Caveat', cursive;
  --sans:'Work Sans', -apple-system, sans-serif;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--charcoal);
  background:var(--parchment);
  -webkit-font-smoothing:antialiased;
}
a{ text-decoration:none; color:inherit; }
img,svg{ display:block; max-width:100%; }

.wrap{ max-width:1180px; margin:0 auto; padding:0 32px; }

/* ---------- NAV ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(251,247,239,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s, height .25s;
}
.nav.is-scrolled{
  box-shadow:0 8px 24px -18px rgba(22,35,63,.4);
}
.nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:78px;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:38px; height:38px; border-radius:10px;
  background:linear-gradient(155deg, var(--evergreen) 0%, var(--evergreen-deep) 100%);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.brand-mark svg{ width:20px; height:20px; }
.brand-text{ line-height:1.15; }
.brand-text b{ display:block; font-family:var(--display); font-weight:600; font-size:15px; color:var(--ink); }
.brand-text span{ font-size:10.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-soft); }

.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-links a{
  font-size:14.5px; font-weight:500; color:var(--ink-soft);
  display:flex; align-items:center; gap:4px;
  transition:color .15s;
}
.nav-links a:hover{ color:var(--evergreen-deep); }
.nav-links .care{ font-size:10px; opacity:.6; }

.nav-right{ display:flex; align-items:center; gap:14px; }

.login-btn{
  background:var(--ink);
  color:var(--parchment);
  padding:11px 24px;
  border-radius:999px;
  font-size:14px; font-weight:600;
  transition:background .15s;
  white-space:nowrap;
}
.login-btn:hover{ background:var(--evergreen-deep); }

/* mobile menu toggle (hamburger) */
.nav-toggle{
  display:none;
  width:38px; height:38px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--paper);
  align-items:center; justify-content:center;
  cursor:pointer;
  flex-shrink:0;
}
.nav-toggle svg{ width:18px; height:18px; color:var(--ink); }
.nav-toggle .icon-close{ display:none; }
.nav-toggle[aria-expanded="true"] .icon-open{ display:none; }
.nav-toggle[aria-expanded="true"] .icon-close{ display:block; }

.mobile-menu{
  display:none;
  flex-direction:column;
  gap:2px;
  padding:8px 20px 18px;
  border-bottom:1px solid var(--line);
  background:var(--parchment);
}
.mobile-menu.is-open{ display:flex; }
.mobile-menu a{
  padding:12px 4px;
  font-size:15px; font-weight:500;
  color:var(--ink-soft);
  border-bottom:1px solid var(--parchment-dim);
}
.mobile-menu a:last-child{ border-bottom:none; }

/* ---------- HERO ---------- */
.hero{
  padding:88px 0 100px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(700px 400px at 85% -10%, rgba(30,127,92,.10), transparent 60%),
    radial-gradient(500px 300px at -5% 40%, rgba(200,155,60,.10), transparent 60%);
  pointer-events:none;
}
.hero .wrap{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:64px;
  align-items:center;
  position:relative;
}

.eyebrow{
  font-family:var(--sans);
  font-size:12.5px; font-weight:700;
  letter-spacing:.14em; text-transform:uppercase;
  color:var(--evergreen-deep);
  display:flex; align-items:center; gap:10px;
  margin:0 0 22px;
  opacity:0; transform:translateY(10px);
  animation:rise .7s ease forwards;
}
.eyebrow::before{
  content:""; width:26px; height:1.5px; background:var(--evergreen-deep);
}

h1.headline{
  font-family:var(--display);
  font-weight:500;
  font-size:clamp(34px, 4.6vw, 54px);
  line-height:1.08;
  letter-spacing:-.01em;
  color:var(--ink);
  margin:0 0 22px;
  opacity:0; transform:translateY(14px);
  animation:rise .8s ease .08s forwards;
}
h1.headline em{
  font-style:italic; color:var(--evergreen-deep);
}

.sub{
  font-size:19px;
  font-weight:600;
  color:var(--gold);
  margin:0 0 18px;
  font-family:var(--display);
  opacity:0; transform:translateY(14px);
  animation:rise .8s ease .16s forwards;
}

.lede{
  font-size:16.5px;
  line-height:1.7;
  color:var(--ink-soft);
  max-width:480px;
  margin:0 0 34px;
  opacity:0; transform:translateY(14px);
  animation:rise .8s ease .24s forwards;
}

.cta-row{
  display:flex; align-items:center; gap:20px; flex-wrap:wrap;
  opacity:0; transform:translateY(14px);
  animation:rise .8s ease .32s forwards;
}
.cta-primary{
  background:var(--evergreen);
  color:#fff;
  font-weight:600; font-size:15.5px;
  padding:16px 30px;
  border-radius:12px;
  display:inline-flex; align-items:center; gap:10px;
  box-shadow:0 14px 28px -12px rgba(30,127,92,.55);
  transition:transform .18s, box-shadow .18s, background .18s;
  border:none; cursor:pointer;
}
.cta-primary:hover{
  transform:translateY(-2px);
  background:var(--evergreen-deep);
  box-shadow:0 18px 32px -12px rgba(21,92,67,.6);
}
.cta-primary svg{ width:16px; height:16px; transition:transform .18s; }
.cta-primary:hover svg{ transform:translateX(3px); }

.cta-secondary-note{
  font-size:13.5px; color:var(--ink-soft);
  display:flex; align-items:center; gap:8px;
}
.cta-secondary-note .dot{
  width:6px; height:6px; border-radius:50%; background:var(--gold);
}

@keyframes rise{ to{ opacity:1; transform:translateY(0); } }

/* ---------- HERO VISUAL: annotated handwriting worksheet ---------- */
.hero-visual{
  position:relative;
  display:flex; justify-content:center;
}
.worksheet{
  background:var(--paper);
  border-radius:18px;
  padding:38px 30px 30px;
  width:100%; max-width:460px;
  box-shadow:0 30px 60px -25px rgba(22,35,63,.35), 0 2px 0 rgba(22,35,63,.04);
  border:1px solid var(--line);
  position:relative;
}
.worksheet::before{
  content:"Lembar Analisis";
  position:absolute; top:-13px; left:26px;
  background:var(--ink);
  color:var(--parchment);
  font-size:10.5px; font-weight:600;
  letter-spacing:.08em; text-transform:uppercase;
  padding:5px 12px; border-radius:999px;
}
.worksheet-lines{
  display:flex; flex-direction:column; gap:0;
  padding-top:6px;
}
.rule{
  height:1px; background:var(--parchment-dim);
  margin-top:38px;
}
.script-sample{
  font-family:var(--script);
  font-size:40px;
  color:var(--ink);
  position:absolute;
  top:34px; left:30px; right:30px;
  line-height:1.5;
}
.worksheet-svg{ width:100%; height:auto; overflow:visible; }
.tag{
  font-family:var(--sans);
  font-size:11px; font-weight:600;
}
.tag .k{ fill:var(--ink-soft); font-weight:500; }
.tag .v{ fill:var(--evergreen-deep); font-weight:700; }
.leader{
  stroke:var(--gold);
  stroke-width:1.4;
  stroke-dasharray:4 4;
  fill:none;
  stroke-dashoffset:1;
  pathLength:1;
}
.leader.animate{
  animation:draw 1.1s ease forwards;
}
@keyframes draw{ from{ stroke-dashoffset:1; } to{ stroke-dashoffset:0; } }
.dot-anchor{
  fill:var(--gold);
  cursor:pointer;
}
.dot-anchor:hover{ r:4.5; }

.worksheet-foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  display:flex; justify-content:space-between; align-items:center;
  font-size:11.5px; color:var(--ink-soft);
}
.seal{
  display:flex; align-items:center; gap:6px;
  font-weight:600; color:var(--gold);
}
.seal svg{ width:14px; height:14px; }

/* small "copied" toast used by the annotation click feature */
.toast{
  position:fixed;
  left:50%; bottom:28px;
  transform:translate(-50%, 16px);
  background:var(--ink);
  color:var(--parchment);
  font-size:13.5px; font-weight:500;
  padding:12px 20px;
  border-radius:999px;
  box-shadow:0 16px 32px -14px rgba(22,35,63,.5);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s, transform .25s;
  z-index:100;
}
.toast.is-visible{
  opacity:1;
  transform:translate(-50%, 0);
}

/* ---------- FEATURES ---------- */
.features{
  padding:20px 0 96px;
}
.features .kicker{
  text-align:center;
  font-family:var(--display);
  font-style:italic;
  font-size:16px;
  color:var(--ink-soft);
  margin:0 0 8px;
}
.features h2{
  text-align:center;
  font-family:var(--display);
  font-weight:500;
  font-size:clamp(24px,3vw,32px);
  color:var(--ink);
  margin:0 0 52px;
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:16px;
  padding:34px 28px;
  position:relative;
  transition:transform .2s, box-shadow .2s;
}
.card:hover{
  transform:translateY(-5px);
  box-shadow:0 24px 40px -24px rgba(22,35,63,.25);
}
.card-index{
  position:absolute; top:22px; right:26px;
  font-family:var(--script);
  font-size:26px;
  color:var(--line);
}
.card-icon{
  width:46px; height:46px;
  border-radius:12px;
  background:var(--parchment-dim);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:22px;
}
.card-icon svg{ width:22px; height:22px; color:var(--evergreen-deep); }
.card h3{
  font-family:var(--display);
  font-weight:600;
  font-size:19px;
  color:var(--ink);
  margin:0 0 10px;
}
.card p{
  font-size:14.5px; line-height:1.65;
  color:var(--ink-soft);
  margin:0;
}

/* ---------- CTA BAND ---------- */
.cta-band{
  background:var(--ink);
  border-radius:26px;
  margin:0 32px 90px;
  padding:56px 48px;
  display:flex; align-items:center; justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"CHA";
  position:absolute;
  right:-14px; bottom:-46px;
  font-family:var(--display);
  font-weight:600;
  font-size:180px;
  color:rgba(255,255,255,0.04);
  line-height:1;
  pointer-events:none;
}
.cta-band-copy h3{
  font-family:var(--display);
  font-weight:500;
  font-size:clamp(22px,2.6vw,29px);
  color:#fff;
  margin:0 0 10px;
  max-width:520px;
}
.cta-band-copy p{
  font-size:14.5px;
  color:rgba(251,247,239,.7);
  margin:0;
  max-width:460px;
}
.cta-band .cta-primary{
  white-space:nowrap;
  flex-shrink:0;
}

/* ---------- FOOTER ---------- */
footer{
  border-top:1px solid var(--line);
  padding:32px 0 40px;
}
footer .wrap{
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:12px;
}
footer p{ font-size:13px; color:var(--ink-soft); margin:0; }
.footer-links{ display:flex; gap:22px; }
.footer-links a{ font-size:13px; color:var(--ink-soft); }
.footer-links a:hover{ color:var(--evergreen-deep); }

/* ---------- RESPONSIVE ---------- */
@media (max-width:920px){
  .hero .wrap{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; margin-bottom:12px; }
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .card-grid{ grid-template-columns:1fr; }
  .cta-band{ flex-direction:column; align-items:flex-start; margin:0 20px 70px; }
  .wrap{ padding:0 20px; }
  .cta-band::after{ display:none; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; }
}